The _______operation performs a set union of two “similarly structured” tables
Union
Join
Product
Intersect
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1
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A relational database consists of a collection of
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2
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By default, the order by clause lists items in ______ order.
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3
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A ________ is a pictorial depiction of the schema of a database that shows the relations in the database, their attributes, and primary keys and foreign keys.
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4
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To display the salary from greater to smaller and name in ascending order which of the following options should be used?
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5
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The most commonly used operation in relational algebra for projecting a set of tuple from a relation is
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6
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Database __________ which is the logical design of the database, and the database _______ which is a snapshot of the data in the database at a given instant in time.
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7
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The tuples of the relations can be of ________ order.
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8
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In the SQL given above there is an error . Identify the error.
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9
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The term attribute refers to a ___________ of a table.
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10
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The _________ provides a set of operations that take one or more relations as input and return a relation as an output.
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